AS5601 datasheet(30/44 Pages) AMSCO

tên linh kiện	AS5601

Giải thích chi tiết về linh kiện	12-Bit Programmable Contactless Encoder

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Page 30

ams Datasheet

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[v1-07] 2016-Sep-09

AS5601 − Register Description

Figure 30:

Step Response (fast filter OFF)

For a fast step response and low noise after settling, the fast

filter can be enabled. The fast filter works only if the input

variation is greater than the fast filter threshold, otherwise the

output response is determined only by the slow filter. The fast

filter threshold is programmed with the FTH bits in the CONF

SF=11) kicks in and takes care of a fast settling. The larger noise

band of the fast filter is reduced again after the slow filter

(depicted is setting SF=00) has taken over. The different noise

bands are shown in Figure 29.

Figure 31:

Fast Filter Threshold

FTH

Fast Filter Threshold (LSB)

Slow-to-Fast Filter

Fast-to-Slow Filter

000

Slow Filter Only

001

010

011

100

101

110

111

Input

Output

response

Sampling

Frequency

Settling Time

according slow filter setting

Noise

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